package com.fwj.demo;

import java.util.HashMap;

/**
 * @author stone.feng
 * @since 2019-03-13
 */
public class Test1 {

    public static String reverse3(String str) {
        String reverse = "";
        int length = str.length();
        for (int i = 0; i < length; i++) {
            reverse = str.charAt(i) + reverse;
            System.out.println(reverse);
        }
        System.out.println(reverse);
        return reverse;
    }

    public static void main(String[] args) {

        System.out.println(12 >> 3);
        System.out.println(-12 >> 2);
        System.out.println(-12 >> 1);
        System.out.println(-12 >>> 4);

        HashMap hashMap = new HashMap();
    }
}
